Without the mind there is no Buddha. Without the Buddha there's no mind.
Our true buddha-nature has no shape. And the dust of affliction has no form.
The Buddha is your real body, your original mind.
Unless you see your nature, all this talk about cause & effect is nonsense. Buddhas don't practice nonsense.
Leaving behind the false, return to the true: make no discriminations between self and others. In contemplation, one's mind should be stable and unmoving, like a wall.
Only one person in a million becomes enlightened without a teacher's help.